There are small particles on the glans, it is recommended to go to the hospital for further consultation to clarify the possible causes of the disease.1. Penile pearl rash, manifested as soft localized papillae-like protuberances, or soft granulomatous protuberances, distributed in the coronal groove of the glans, close to the side of the foreskin ligament, or distributed in the coronal groove of the glans in the ring of growths. There is no pain, no abnormal bleeding, no abnormal discharge, no abnormal odor, etc. It can exist for a long time, and may be related to factors such as circumcision or phimosis, without any treatment. 2, warts, because of unclean sexual contact, resulting in human papillomavirus infection caused by. In the glans, coronary groove, urethra, foreskin, perineal area and even perianal area and other parts, there is a papillary or cauliflower-like protruding particles, accompanied by bleeding, and the size of the progressive increase, accompanied by abnormal secretion or bad smell. Surgical excision and pathologic examination are needed to confirm the diagnosis.